The Collaborative International Dictionary of English v.0.48:
Vocally \Vo"cal*ly\, adv. 1. In a vocal manner; with voice; orally; with audible sound. [1913 Webster] 2. In words; verbally; as, to express desires vocally. [1913 Webster]WordNet (r) 3.0 (2006):
vocally adv 1: in a vocal manner; "she defended herself vocally"